Patent application title: Collapsible Food Service System

Abstract:

A food service system is formed using a plurality of units capable of
being interlocked together in a variety of customizable configurations.
The units of the food service system include a food service bar with
buffet pan chillers, a work table, a cashier station, and variety of
connecting pieces for linking each of the units together. The food
service bar comprises a sneeze guard that protects the food contained
within the bar on three sides and can be broken down and folded down and
into itself when the bar is being transported or stored. The buffet pan
chillers are double sided and configured such that when frozen, may
accommodate a shallow food pan on one side and then flipped over to
accommodate a deep food pan on the other side while still maintaining the
same serving height. Each unit is configured to receive multiple sizes of
wheels or casters.

Claims:

1. A mobile and collapsible food service system comprising: a food
service bar with a main compartment comprising a longitudinal centerline;
a pair of legs coupled to the bottom of the main compartment; a pair of
tray rails coupled to either side of the main compartment; and a
collapsible sneeze guard assembly coupled to the main compartment.

2. The food service system of claim 1 wherein the pair of tray rails
comprise means for extending out into an extended flat position
substantially perpendicular to the centerline of the main compartment and
means for collapsing and folding down substantially parallel to the
centerline of the main compartment.

3. The food service system of claim 1 wherein the collapsible sneeze
guard assembly comprises: a pair of substantially vertical end walls
disposed on either end of the food service bar; a sneeze guard disposed
on either side of the main compartment and wherein each sneeze guard
comprises means to rotate about a fixed point on each of the end walls;
and a pair of rotatable end panel guards coupled to each of the end walls
and wherein each end panel guard comprises means to fold out to an angle
within 30 degrees from a substantially perpendicular position to the
centerline of the main compartment and means to fold to a minimum
position substantially parallel to the centerline of the main
compartment.

4. The food service system of claim 3 wherein the sneeze guard assembly
further comprises means for the sneeze guard disposed on either side of
the main compartment to be supported and rest upon each of the end panel
guards when the end panel guards are at an angle within 30 degrees from
the substantially perpendicular position to the centerline of the main
compartment.

5. The food service system of claim 3 wherein the sneeze guard assembly
further comprises means for the sneeze guard to hang down against each of
the end walls when the end panel guards are in their minimum position
substantially parallel to the centerline of the main compartment.

6. The food service system of claim 1 where the food service bar further
comprises a removable end table component that comprises means for
coupling to the food service bar via the hand holds defined in the main
compartment.

7. The food service system of claim 1 further comprising a plurality of
food service bars coupled together by means of at least one removable
straight connector that comprises means for coupling to the plurality of
food service bars via the hand holds defined in the main compartment.

8. The food service system of claim 1 further comprising a plurality of
food service bars coupled together by means of at least one removable
corner connector that comprises means for coupling to the plurality of
food service bars via the hand holds defined in the main compartment.

9. The food service system of claim 1 where the main compartment of the
food service bar further comprises: a plurality of removable well covers
disposed across the main compartment to provide a substantially flat
table surface; and a plurality of hand holds defined into either end of
the main compartment wherein the hand holds comprise means to link a
plurality of food service bars together.

10. The food service system of claim 1 where the food service bar
comprises means for a plurality of casters of at least two different
sizes to be interchangeably coupled to the bottom of the legs.

11. The food service bar of claim 1 further comprising a cashier station
coupled to at least one food service bar.

12. The food service system of claim 11 where the cashier station
comprises: a flat work surface; a drawer disposed beneath the flat work
surface; and an interior cabinet volume disposed beneath the drawer.

13. The food service system of claim 12 where the flat work surface of
the cashier station comprises an access port defined within the surface
that allows access to the interior cabinet volume below.

14. The food service bar of claim 12 where the drawer of the cashier
stand comprises an adjustable keyboard insert coupled to an interior
molding of the drawer.

15. A removable and freezable buffet pan chiller for maintaining a food
pan at a reduced temperature, wherein the buffet pan chiller is shaped
and configured to fit within the main compartment of a food service bar.

16. The buffet pan chiller of claim 15 further comprising a pair of
corner tabs disposed on one edge of the buffet pan chiller and a center
tab disposed on the opposite edge of the buffet chiller so that a
plurality of buffet pan chillers may be stacked upon one another in a
substantially nested position.

17. The buffet pan chiller of claim 15 where the buffet pan chiller
comprises a pair of corner tabs disposed on one edge of the buffet pan
chiller and a center tab disposed on the opposite edge of the buffet
chiller so that when facing upwards, the buffet pan chiller can
accommodate a first food pan with one depth, and then when turned upside
down, the buffet pan chiller can accommodate a second food pan with a
differing depth than that of the first food pan.

18. The buffet pan chiller of claim 17 where the buffet pan chiller
maintains the same serving height for both the first and second food pan.

19. A mobile and collapsible food service system comprising: a food
service bar with a main compartment having a longitudinal centerline; a
pair of substantially vertical end walls disposed on either end of the
food service bar; a sneeze guard disposed on either side of the main
compartment and wherein each sneeze guard comprises means to rotate about
a fixed point on each of the end walls; and a pair of rotatable end panel
guards coupled to each of the end walls and wherein each end panel guard
comprises means to fold out to an angle within 30 degrees from a
substantially perpendicular position to the centerline of the main
compartment and means to fold to a minimum position substantially
parallel to the centerline of the main compartment.

20. The food service bar of claim 19 further comprising a pair of legs
coupled to the bottom of the main compartment; a pair of tray rails
coupled to either side of the main compartment; a plurality of hand holds
defined into either end of the main compartment, wherein the hand holds
comprise means to link a plurality of food service bars together; and a
collapsible sneeze guard assembly coupled to the main compartment having
a removable and freezable buffet pan chiller for maintaining a food pan
at a reduced temperature, wherein the buffet pan chiller is shaped and
configured to fit within the main compartment of the food service bar.

Description:

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The invention relates to the field of food service bars for use in
restaurants and cafeterias, and in particular to a food service bar that
is capable of collapsing into a more compact shape for ease of transport
and storage.

[0003] 2. Description of the Prior Art

[0004] Food service bars have long been used in restaurants, school
cafeterias, and by catering companies when a large amount of food is
required to be served to a large amount of people. A food service bar can
be made of any strong, durable, easy to clean material such as wood,
glass, plastic or plastic composites, or any combination thereof.

[0005] Typically, a food service bar comprises a plurality of compartments
or trays for holding a variety of foods and a means for keeping those
foods at various desired temperatures. Some tray compartments may contain
hot water for keeping the food contained within the tray warm or hot,
while other trays may have ice in order to keep their foods cold.
Additionally, the compartments may take on various shapes to accommodate
different shaped food service trays or even other containers such as
condiment or salad dressing dispensers.

[0006] Also included in nearly every food service bar is a sneeze guard
which protects the food contained in the bar from unwanted contact from a
user of the food service bar while still allowing the user access to the
food. The sneeze guard may be set at a fixed angle or position or
alternatively the guard may be adjustable to accommodate different users
such as children.

[0007] Some bars contain wheels disposed on the bottom which allow the bar
to be easily rolled in and out of a desired location, including locations
that are outside. This is especially beneficial to caterers as mobility
is a key aspect to their business.

[0008] Finally, many food service bars have tray rails or other surfaces
in which a user may slide their food tray along as they are progressing
along the bar and selecting their food. The tray rails are typically
located at waist level of an average user and are permanently coupled to
the food service bar itself.

[0009] While the food service bars containing one or more of the above
described features are not without their respective applications, several
limitations exist which severely limit their effective use. The sheer
size of a food service bar can prove to be a hindrance when attempting to
transport the bar from one location to another, particularly when
traveling through a standard sized doorway or when loading or unloading
the bar from a delivery vehicle. Also, many bars keep food cold by
surrounding the food to be chilled with ice cubes which in addition to
the ice easily melting when in direct sunlight and providing substandard
cooling, presents a health risk as germs and other contaminants can
become mixed in with the half-melted ice. Additionally, while many bars
contain wheels, they lack the resiliency and structural durability to
travel over rough terrain such as dirt paths and grass, or uneven
pavement such as cobblestones. Furthermore, many food service bars can
only operate as a single stand alone unit and cannot be customized with
multiple other units or a plurality of attachments so as to be tailored
to a specific situation.

[0010] What is needed is a food service system that overcomes the
limitations found in the prior art while still meeting the expectation of
ease of use and the health standards required of a food service bar.

BRIEF SUMMARY OF THE INVENTION

[0011] A food service system is formed using a plurality of units capable
of being interlocked together in a variety of customizable
configurations. The units of the food service system may include a food
service bar with optional buffet chillers, a work table, a cashier
station, and variety of connecting pieces for linking each of the units
together. Each unit is made primarily of durable, lightweight
rotationally molded plastic and is capable of being broken down into
primary pieces for ease of cleaning and shipping. The food service bar
comprises a sneeze guard that protects the food contained within the bar
on three sides and can be broken down and folded away when the bar is
being transported or not in use. Additionally, the food service bar
comprises tray rails that may be locked into position and then broken
down with a minimal amount of intervening steps and moving parts. The
buffet chillers that may be inserted into the bar are double sided and
configured such that when frozen, may accommodate a 2.5 inch deep food
pan on one side and then flipped over to accommodate a deeper 4 inch food
pan on the other side while still maintaining the same overall depth
within the serving well of the bar. The cashier station is sufficiently
large enough to accommodate a standard sized computer and is configured
so as to allow sufficient space and access for computer and printer
cables and the like. A variety of connector pieces such as an end table,
a straight connector, and a corner connector allow the user to link
multiple units together in any configuration for any situation as
necessary. Finally, each unit is configured to receive multiple sizes of
wheels or casters. The user may install the larger casters when the food
service system is be used outside or when being transported over rough
terrain, or they may install the smaller casters when being used in an
indoor setting.

[0012] The current application is for a mobile and collapsible food
service system comprising a food service bar with a main compartment
comprising a longitudinal centerline, a pair of legs coupled to the
bottom of the main compartment, a pair of tray rails coupled to either
side of the main compartment, a plurality of hand holds defined into
either end of the main compartment, and a collapsible sneeze guard
assembly coupled to the main compartment.

[0013] The pair of tray rails comprise means for extending out into an
extended flat position perpendicular to the centerline of main
compartment and means for collapsing and folding down parallel against
the centerline of the main compartment.

[0014] The collapsible sneeze guard assembly of the food service system
comprises a pair of vertical end walls disposed on either end of the food
service bar, a sneeze guard disposed on either side of the main
compartment and wherein each sneeze guard comprises means to rotate about
a fixed point on each of the end walls, and a pair of rotatable end panel
guards coupled to each of the end walls and wherein each end panel guard
comprises means to fold out to an angle within 30 degrees from a
substantially perpendicular position to the centerline of the main
compartment and means to fold to a minimum position substantially
parallel to the centerline of the main compartment.

[0015] The sneeze guard assembly further comprises means for the sneeze
guard disposed on either side of the main compartment to be supported and
rest upon each of the end panel guards when the end panel guards are in
their maximum position perpendicular to the centerline of the main
compartment.

[0016] In another embodiment, the sneeze guard assembly further comprises
means for the sneeze guard to hang down against each of the end walls
when the end panel guards are in their minimum position substantially
parallel to the centerline of the main compartment.

[0017] The food service bar further comprises a removable end table
component that comprises means for coupling to the food service bar via
the hand holds defined in the main compartment.

[0018] In another embodiment, the food service system further comprises a
plurality of food service bars coupled together by means of at least one
removable straight connector that comprises means for coupling to the
plurality of food service bars via the hand holds defined in the main
compartment.

[0019] In still another embodiment, the food service system further
comprises a plurality of food service bars coupled together by means of
at least one removable corner connector that comprises means for coupling
to the plurality of food service bars via the hand holds defined in the
main compartment.

[0020] In yet another embodiment, the food service system comprises that
the main compartment of the food service bar further comprises a
plurality of removable well covers disposed across the main compartment
to provide a substantially flat table surface.

[0021] In another embodiment, the food service bar of the food service
system comprises means for a plurality of casters of at least two
different sizes to be interchangeably coupled to the bottom of the legs.

[0022] In a further embodiment, the food service bar further comprises a
cashier station coupled to at least one food service bar.

[0023] The cashier station comprises a flat work surface, a drawer
disposed beneath the flat work surface, and an interior cabinet volume
disposed beneath the drawer.

[0024] In one embodiment, the flat work surface of the cashier station
comprises an access port defined within the surface that allows access to
the interior cabinet volume below. The drawer of the cashier stand itself
comprises an adjustable keyboard insert coupled to an interior molding of
the drawer.

[0025] It is further an aspect of the invention to provide a removable and
freezable buffet pan chiller for maintaining a food pan at a reduced
temperature, wherein the buffet pan chiller is shaped and configured to
fit within the main compartment of a food service bar.

[0026] In one embodiment, the buffet pan chiller further comprises a pair
of corner tabs disposed on one edge of the buffet pan chiller and a
center tab disposed on the opposite edge of the buffet chiller so that a
plurality of buffet pan chillers may be stacked upon one another in a
substantially nested position.

[0027] In another embodiment, the buffet pan chiller comprises a pair of
corner tabs disposed on one edge of the buffet pan chiller and a center
tab disposed on the opposite edge of the buffet chiller so that when
facing upwards, the buffet pan chiller may accommodate a first food pan
with one depth, and then when flipped upside down, the buffet pan chiller
may accommodate a second food pan with a differing depth than that of the
first food pan. In this embodiment, the buffet pan chiller maintains the
same serving height for both the first and second food pan.

[0028] It is further an aspect of the invention to provide a mobile and
collapsible food service system comprising a food service bar with a main
compartment comprising a longitudinal centerline, a pair of legs coupled
to the bottom of the main compartment, a pair of tray rails coupled to
either side of the main compartment, a plurality a of hand holds defined
into either end of the main compartment, a collapsible sneeze guard
assembly coupled to the main compartment, and a removable and freezable
buffet pan chiller for maintaining a food pan at a reduced temperature,
wherein the buffet pan chiller is shaped and configured to fit within the
main compartment of a food service bar.

[0029] In this embodiment, the collapsible sneeze guard assembly comprises
a pair of vertical end walls disposed on either end of the food service
bar, a sneeze guard disposed on either side of the main compartment and
wherein each sneeze guard comprises means to rotate about a fixed point
on each of the end walls, and a pair of rotatable end panel guards
coupled to each of the end walls and wherein each end panel guard
comprises means to fold out to an angle within 30 degrees from a
substantially perpendicular position to the centerline of the main
compartment and means to fold to a minimum position substantially
parallel to the centerline of the main compartment.

[0030] While the apparatus and method has or will be described for the
sake of grammatical fluidity with functional explanations, it is to be
expressly understood that the claims, unless expressly formulated under
35 USC 112, are not to be construed as necessarily limited in any way by
the construction of "means" or "steps" limitations, but are to be
accorded the full scope of the meaning and equivalents of the definition
provided by the claims under the judicial doctrine of equivalents, and in
the case where the claims are expressly formulated under 35 USC 112 are
to be accorded full statutory equivalents under 35 USC 112. The invention
can be better visualized by turning now to the following drawings wherein
like elements are referenced by like numerals.

BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG. 1 is a perspective view of an example configuration of the
food service system comprising a plurality of food service bars, a
cashier stand, a corner connector, and a straight connector.

[0032]FIG. 2 is a perspective view of an alternative example of the food
service system comprising a plurality of food service bars, a straight
connector, and an end table.

[0033] FIG. 3 is a perspective view of the food service bar when the tray
rails and sneeze guard assembly are fully extended in their operating
position.

[0034]FIG. 4 is a side view of the food service bar when the tray rails
and sneeze guard assembly are fully extended in their operating position.

[0035]FIG. 5 is an end view of the food service bar when the tray rails
and sneeze guard assembly are fully extended in their operating position.

[0036]FIG. 6 is a perspective view of the food service bar when the tray
rails and sneeze guard assembly are fully collapsed.

[0037]FIG. 7 is an end view of the food service bar when the tray rails
and sneeze guard assembly are fully collapsed.

[0038] FIG. 8 is a detailed end view of the sneeze guard assembly when it
is fully extended in its operating position.

[0039]FIG. 9 is a detailed end view of the sneeze guard assembly when it
is fully collapsed.

[0040] FIG. 10 is a perspective view of the service table embodiment of
the food service bar.

[0041]FIG. 11 is a perspective view of the service table embodiment of
the food service bar when a plurality of well covers have been removed
from the service table allowing food stuffs to be stored within the
service table.

[0042]FIG. 12 is magnified view of the food well of the food service bar
comprising a buffet pan within a buffet pan chiller.

[0043] FIG. 13 is a pair of end views of the buffet pan chiller, each end
view corresponding to when a deep or shallow buffet pan is placed within
the chiller and demonstrating that regardless of what either buffet pan
is used, a constant serving height is maintained for both buffet pans.

[0044]FIG. 14 is a perspective view of the main compartment of the food
service bar with a plurality of buffet pan chillers disposed therein.

[0045] FIG. 15 is a left and right perspective views of the cashier stand,
the right perspective view with the tray rails fully extended in their
operating position, the left perspective view without the tray rail
embodiment.

[0046] FIG. 16 is a left perspective view of the cashier stand with the
tray rails fully extended in their operating position when the access
panel has been removed from the cashier stand.

[0047]FIG. 17 is a rear perspective view of the cashier stand with one of
the tray rails in its fully extended operation position and the other
tray rail in its fully collapsed position.

[0048] FIG. 18 is a rear perspective view of the cashier stand with the
drawer extended from the cabinet of the cashier stand.

[0049]FIG. 19 is a rear perspective view of the cashier stand with the
drawer extended from the cabinet of the cashier stand and an optional
keyboard monitor disposed on top of the cashier stand.

[0050]FIG. 20 is a perspective cross sectional view of the cashier stand
drawer when the keyboard insert is at its minimum position on the bottom
of the drawer.

[0051]FIG. 21 is a cross sectional view of the cashier stand drawer when
the keyboard insert is at its maximum position at the top of the drawer.

[0052]FIG. 22 is a perspective view of the caster insert plate that is
disposed within the legs of the food service bar and cashier stand.

[0053] FIG. 23 is a cross sectional view of the caster insert plate that
is disposed within the legs of the food service bar and cashier stand.

[0054]FIG. 24 is a perspective view of the main compartment and sneeze
guard assembly of the food service bar.

[0055]FIG. 25 is a perspective view of the buffet pan chillers shown in
FIG. 13.

[0056] The invention and its various embodiments can now be better
understood by turning to the following detailed description of the
preferred embodiments which are presented as illustrated examples of the
invention defined in the claims. It is expressly understood that the
invention as defined by the claims may be broader than the illustrated
embodiments described below.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0057] A general understanding of the main embodiments can be found by
turning to FIG. 1 which shows an example of one of the many possible
configurations of the food service system, generally denoted by reference
numeral 10. The food service system 10 comprises of one or more food
service bars 12 and a cashier station 14. The food service bars 12 are
linked together by a corner connector 16 and are then linked in turn to
the cashier station 14 by a straight connector 18. It is to be expressly
understood that fewer or more food service bars 12 may linked together by
any combination or number of straight connectors 18 or corner connectors
16 without departing from the original spirit and scope of the invention.
For example, an alternative food service system 10 is shown in FIG. 2
comprising two food service bars 12 coupled together by a straight
connector 18. Also shown in FIG. 2 is an end table 20 which may be
coupled to any free end of any one of the food service bars 12. The
straight connectors 18, corner connectors 16, and end table 20
effectively extend a continuous usable surface of the food service system
10 and helps guides users through the system 10 as they are selecting
their items from the food service bars 12.

[0058] The food service bars 12, the cashier station 14, the straight and
corner connectors 16, 18 and end table 20 are all preferably comprised of
rotationally molded plastic, however other materials now known or later
devised may also be used. The use of molded plastic allows the various
components to be light weight, yet durable and strong enough to withstand
extended or outdoor use.

[0059] The straight connectors 18, corner connectors 16, and end table 20
are stand alone pieces that may be coupled and removed to and from the
food service bars 12 at will. In other words, the straight and corner
connectors 18, 16 and end table 20 are interchangeable and may be placed
anywhere in the food service system 10 according to the desires of the
user. The straight connectors 18, corner connectors 16, and end table 20
are configured to be inserted and then locked into a pair of hand holds
22 disposed in the food service bar 12 as seen in FIG. 3. The straight
connectors 18, corner connectors 16, and end table 20 may be inserted and
locked into the hand holds 22 without any outside tools due to the
specific shape of the hand holds 22 and the respective connective piece
being inserted into it. The hand holds 22 can be substituted with
openings to receive hooks, links or can be of any other mechanical means
to link the food service bar 12 and assemblies together.

[0060] A more complete understanding of the food service bar 12 may be had
by turning to FIGS. 3-5. Each food service bar 12 comprises a main
compartment 40 which in turn comprises a main food well 28 as best seen
in FIGS. 3 and 4. The food well 28 shown in the drawings is rectangular,
however it also contemplated that different shaped wells or a plurality
of wells may also be used. Defined into either end of the main
compartment 40 are a pair handles 22. In addition to serving as conduits
for the various connecting pieces as disclosed above, the handles 22
allow the user to grip the food service bar 12 at a position where the
possibility of inadvertently tipping over the bar 12 is the least likely.

[0061] FIGS. 3 and 4 best show that at least two legs 24 are coupled to
the main compartment 40. Disposed on each leg 24 are at least two casters
26 which allow the food service bar 12 to be mobile and to be pushed or
pulled by a user via the handles 22. The size of the casters 26 can be
changed to fit the particular needs of the user using the food service
bar 12 by means of a caster insert plate 118 as seen in FIG. 23. The
caster insert plate 118 comprises a large caster input 114 and a small
caster input 116 coupled to a single caster base 112. The large and small
inputs 114, 116 are equal in length and both comprise internal threading,
however the large caster input 114 is approximately 25% bigger in
diameter than the small caster input 116. The large and small caster
inputs 114, 116 may be cylinder shaped as seen in FIG. 23, however other
shapes such as hexagons, octagons, and other shapes common in industrial
manufacturing may also be used. A set of caster insert plates 118 are
coupled to each of the legs 24 so that the tops of the small and large
caster inputs 120 are flush with the bottom surface of the leg 24. When
the user wishes to use the food service bar 12 indoors on a flat surface
such as tile or linoleum, a caster 26 known in the art is inserted into
the small caster input 116 by threading the caster 26 to the internal
thread defined within the small castor input 116. If the food service bar
12 is to be used outdoors or pushed along uneven surfaces such as
cobblestones and the like, the user removes the caster 26 from the small
caster input 116 and threads a different, larger caster 26 known in the
art into the large caster input 114. Allowing the user to change the
casters 26 allows increased flexibility in implementing the food service
bar 12. Additionally, the ability to swap out casters 26 adds to the
overall lifespan of the food service bar 12 as typically the first part
to degrade and break down is the part that supports the most weight and
makes the most contact with the surface.

[0062] Also coupled to the main compartment 40 is a pair of tray rails 30,
one on each side of the main compartment 40 as best seen in FIG. 5. Each
of the tray rails 30 comprise a plurality of tray rail bridges 46
disposed on the bottom of the tray rail 30 that extend out in the same
direction as seen in FIGS. 5 and 6. The tray rail bridges 46 are
comprised of the same plastic material as the tray rails 30 and are
preferably part of the molded tray rail 30 itself, thus forming a
singular piece free of moving parts or welds. The tray rails 30
themselves are sized to sufficiently support a standard size food tray
known in the art as they are slid down the length of the food service bar
12. The tray rails 30 are collapsible in that they can be manipulated to
be folded down beneath the main compartment 40 and against the legs 24 as
seen in FIG. 6. If the tray rails 30 are in the upright and locked
position of FIG. 5, the user first unscrews or backs off a threaded
fastener (not shown) on each outside rail bridge 46 to unlock the tray
rail 30, then grips the tray rail 30 anywhere along its length and pulls
the tray rail 30 out in the normal direction away from the main
compartment 40. Pulling out the tray rail 30 pulls out the tray rail
bridge 46 from a correspondingly shaped socket defined within the main
compartment 40. With the tray rail bridge 46 free of the socket, the tray
rail 30 as a whole is then free to rotate about a tray rail pin 48
disposed in the main compartment 40 as seen in FIGS. 6 and 7 and down
towards the legs 24. The tray rail pin 48 is preferably comprised of a
light weight durable metal such as aluminum and each tray rail bridge 46
comprises a hole for its respective tray rail pin 48 to be threaded
therethrough. To set the tray rails 30 back in the upright position of
FIG. 5, the user rotates the tray rails 30 about the tray rail pins 48.
When the tray rail 30 is at a level that is normal to the main
compartment 40, the user pushes the tray rail 30 into the main
compartment 40 causing the tray rail bridges 46 to slide into each of
their respective sockets. The shape of the sockets and the gravitational
torque that is constantly being applied to the tray rails 30 causes the
tray rails 30 to be effectively placed into position within the main
compartment 40 and thus provides an even, stable surface suitable for
supporting the weight of a user's loaded food tray. The threaded fastener
on each outside rail bridge 46 is then tightened to lock the tray rail 30
from unwanted release. The whole process of assembling and disassembling
the tray rails 30 into their upright and collapsed positions is done with
a minimum of moving parts and metal components so as increase the ease of
use as well as to cut down on overall manufacturing costs.

[0063] The food service bar 12 also comprises a foldable and collapsible
sneeze guard assembly 50 as seen in its extended and collapsed
configurations in FIGS. 8 and 9 respectively. The sneeze guard assembly
50 comprises a pair of swing down sneeze panels 54, a pair of end guard
panels 32 for each of the sneeze panels 34, a pair of end walls 38
disposed on either end of the food service bar 12, and a cap 36 that
extends between the end walls 38 and suspended in the air above the food
well 28 below. Each of the end walls 38 are coupled to the main
compartment 40 at either end of the food service bar 12 seen in FIG. 4 by
any removable means now known or later devised that allow the end walls
38 to be easily placed and re-placed by the user in order to conform to
their present will and to assist in the ease of cleaning. The cap 36 is
in turn coupled to the top portions of each of the end walls 38 by means
of an adjustable thumb screw 52. Should the user desire the sneeze guard
assembly 50 to be broken down, the thumb screw 52 is loosened and the cap
36 may then be freely removed.

[0064] The sneeze guard assembly 50 is seen in its extended configuration
in FIGS. 3, 5, and 8. Here it is seen that each end guard panel 32 are in
their maximum extended position substantially perpendicular to the
longitudinal centerline of the main compartment 40 and form a solid end
piece along with the end wall 38 that they are coupled to at each end of
the food service bar 12. If both sets of end guard panels 32 are extended
from both sides of the end wall 38, it can be seen in FIG. 5 that
protection from the outside elements is extended from the tray rail 30 on
one side of the food service bar 12 to the tray rail 30 disposed on the
opposite side of the food service bar 12. It can also be seen in FIGS. 5
and 8 that each end guard panel 32 comprises a window 44 substantially
shaped like the end guard panel 32 itself. The windows 44 are preferably
comprised of clear plastic or plastic composite, however other light
weight materials resistant to scratching and breaking may also be used.
The end guard panels 32 are also shaped to accommodate an end segment 34
disposed on each end of the sneeze guard panels 54 as best seen in FIG. 4
in a tight and secure fit. The end guard panels 32 serve as vertical
supports for the sneeze guard 54 with the end segments 34 resting in the
indentations defined in the end guard panels 32. Each end guard panels 32
can fold outwardly to support the sneeze guard panel 54 to an angle up to
30 degrees on either side of the substantially perpendicular to the
longitudinal centerline position described above, as long as it underlies
and supports the sneeze guard panel 54 above it. Each end segment 34 of
the sneeze guard panel 54 is comprised of the same rotationally molded
plastic as the other components of the food service system 10, however
the material between the end segments 34 that comprises the majority of
sneeze guard 54 is the same clear plastic material or plastic composite
material comprising the windows 44. It is in this fashion that the food
service bar 12 provides protection on three sides but still allows users
direct access to the food stuffs contained within the food well 28.

[0065] When the food service bar 12 is to be transported or stored away,
the user lifts up on the sneeze panel 54 rotating it about a pin 56
disposed between it and the end wall 38. With the end segments 34 now
lifted out of the fitted indentations defined in the end guard panels 32,
the end guard panels 32 are then swung about a joint disposed within the
end wall 38 much like a door until they are parallel with the
longitudinal center line of the main compartment 40. After this process
is repeated on the other end of the food service bar 12, the sneeze panel
54 may then be dropped against the end walls 38 as seen in FIGS. 6, 7, 9,
and 25. The entire procedure may then be repeated on the other side of
the food service bar 12, thus reducing the overall width of the food
service bar 12 to a much more compact and compressed footprint.

[0066] Collapsing the sneeze guard assembly 50 and both tray rails 30 as
described above reduces the overall width of the food service bar 12 by
more than 27%, thus allowing it pass through standard 3 foot wide
doorways. Decreased width also allows for more efficient storage within a
storage space as well as increased ease of use when transporting the food
service bar 12 to a distant location in a delivery vehicle.

[0067] To extend the sneeze guard assembly 50 back into its fully deployed
position from the collapsed position shown in FIGS. 6, 7, and 9, the
sneeze panel 54 and end segments 34 are lifted by rotating them about pin
56. The sneeze panel 54 and end segments 34 are lifted sufficiently high
enough so that each end guard panel 32 may then be swung out until they
are substantially perpendicular to the longitudinal centerline of the
main compartment 40. Once the end guard panels 32 are fully extended, the
sneeze panel 54 and end segments 34 are lowered until the end segments 34
are once again snugly nested into the defined top surfaces of the end
guard panels 32 as seen in FIGS. 3, 5, and 8.

[0068] In an alternative embodiment, the food service bar 12 may be
converted into a service table 64 as seen in FIGS. 10 and 11. As
discussed above, the sneeze guard assembly 50 may be removed leaving the
main compartment 40 and legs 24 behind. A pair of wall caps 58 are then
placed into the empty positions that the end walls 38 once occupied at
either end of the service table 64. The wall caps 58 close any open gaps
left behind by the removal of the end walls 38 as well as provide a more
atheistically appealing look to the service table 64. A plurality of well
covers 60 are then placed over the open food well 28 defined within the
main compartment 40. In FIG. 10, four well covers 60 are shown, however
fewer or more well covers 60 of various sizes may be used without
departing from the original spirit and scope of the invention. With the
well covers 60 in place, the service table 64 may be used as a
preparation table, display station, or for any other application that
requires a table with a stable, flat surface. Alternatively as seen in
FIG. 11, one or more or the well covers 60 may be removed leaving an
opening available into the main compartment 40 for the placement of
various self-serve items 62 while the remaining well covers 60 may be
left in place thus providing a self-service station with an available
flat display surface. The service table 64 may be coupled to any
plurality of connectors or other components of the food service system 10
of FIGS. 1 and 2 in the same manner described above for the food service
bar 12.

[0069] A deeper understanding of the buffet chiller that may be optionally
inserted into the food service bar 12 or service table 64 may be had by
turning to FIGS. 12-14, and 26 which show the buffet chiller generally
denoted by reference numeral 66. The buffet chiller 66 is generally in
the form of a box or book shape and is made of durable light weight
plastic and comprises at least one hollow compartment with internal
dividers to create at least three separate portions or sub-compartments.
Each sub-compartment within the buffet chiller contains refrigerant gel
or liquid commonly used in the art for ice packs and other like
applications. When placed in a freezer, the refrigerant gel freezes
within the buffet chiller 66. When taken out of the freezer, the frozen
gel then keeps the buffet chiller 66 and anything resting on the buffet
chiller 66 at a sufficiently low temperature for a number of hours. The
internal dividers keep the refrigerant gel within each of the internal
sub-compartments from mixing and collecting in one end of the buffet
chiller 66 when the buffet chiller 66 is placed on end or on either of
its sides.

[0070] As seen in FIG. 12, the buffet chiller 66 comprises a pair of
corner tabs 72 disposed near the corners of one side of the buffet
chiller 66 and a center tab 74 disposed in the center of the opposite
side of the buffet chiller 66. Both the corner tabs 72 and the center tab
74 are roughly equal with one face of the buffet chiller 66 but then
extend approximately 1.5 inches above the opposite face of the buffet
chiller 66. The purpose for the corner tabs 72 and the center tab 74 on
either sides of the buffet chiller 66 being unequally disposed with
respect to the faces of the buffet chiller 66 is so that when the tabs
72, 74 are extending upward, the chiller 66 may accommodate a four inch
deep food pan 68, and when turned upside down with the tabs 72, 74
extending downward, the chiller 66 may accommodate a 2.5 inch deep food
pan 70 and yet still maintain the same serving height as when the four
inch deep pan 68 is placed as seen in FIGS. 13 and 26. Thus it can be
seen when a plurality of buffet chillers 66 are placed within the food
well 28 of the main compartment 40 as seen in FIG. 14, a variety of
different foods requiring different sized food pans may be placed and yet
may all maintain a uniform serving height and appearance while still
being kept at a cool temperature from the buffet chiller 66.

[0071] The corner tabs 72 and center tab 74 also provide a symmetry to the
buffet chiller 66 which allows a plurality of buffet chillers 66 to be
efficiently stacked or stored within a small volume. The user flips and
rotates the top most buffet chiller 66 so that the center tab 74 of the
top chiller 66 can be nested between the corner tabs 72 of the chiller 66
beneath it. This process of alternating the orientation of the chillers
66 may be repeated indefinitely. The resulting shape of the stacked
chillers 66 is a solid, compact form that is ideal for storage or
transport or for when trying to maximize space within a freezer as the
buffet chillers 66 are being frozen.

[0072] Better understanding of the cashier station 14 may be had by
turning to FIG. 15. The cashier station 14 is substantially square or box
shaped with a plurality of casters 26 disposed beneath to increase
mobility and ease of use by a user. The casters 26 coupled to the cashier
station 14 are preferably interchangeable as discussed above with respect
to the food service bar 12. The cashier station 14 preferably comprises a
pair of handles 78 defined into the top of the station 14 and a plurality
of side rails 76 disposed on either side of the station 14. The side
rails 76 are comprised of the same material as the tray rails 30 of the
food service bar 12, and are collapsible as seen in FIG. 17 by the same
means described above with respect to the tray rails 30 of the food
service bar 12. The side rails 76 on either side of the cashier station
14 may be at staggered or unequal heights as seen in FIGS. 15-18 or they
may be at the same or equal height as seen in FIG. 19. Alternatively, the
cashier station 14 may have no side rails 76 at all as seen in the second
embodiment of FIG. 15.

[0073] The cashier station 14 also comprises a removable access panel 80
disposed in the front of the cashier station 14. To remove the access
panel 80, a user standing at the front of the cashier station 14 removes
two fasteners (not shown) on the face area of the access panel 80 and
pops out the access panel 80 from an access aperture 82 as seen in FIG.
16. The user is then free to reach or gain access to items such as wires,
switches, and the like from either side of the cashier station 14 at will
and bring them closer to the user.

[0074] The rear or user space of the cashier station 14 can best be seen
by now turning to FIGS. 17-20. The top of the cashier station 14 is a
flat surface 88 that is substantially large enough to provide ample space
for a user to perform various tasks such as food check-out service which
may include the use of a computer or register screen 90 as seen in FIG.
19.

[0075] Beneath the flat surface 88, is a large drawer 86 sufficiently
sized to fit a standard cash box or tray or a keyboard insert 94 as seen
in FIGS. 18 and 19. A cross section of the inside of the drawer 86 may be
seen in FIGS. 20 and 21. The drawer 86 comprises a drawer track 108
defined on each of the inner side walls of the drawer 86. The keyboard
insert 94 correspondingly comprises an insert molding 110 disposed on the
bottom of the insert 94. The insert molding 110 is sufficiently sized and
shaped to fit within the drawer track 108. If the keyboard insert 94 is
on the bottom of the drawer 86 as seen in FIG. 20, the user may pull on
the insert 94 in the proximal direction. As the keyboard insert 94 moves
in the proximal direction, the insert molding 110 moves up the drawer
track 108. The drawer track 108 is sufficiently sloped at an incline
which then guides the keyboard insert 94 up to the top of the drawer 86
as seen in FIGS. 18-21. With the keyboard insert 94 resting on top of the
drawer track 108, the user may use the insert 94 as a support surface for
a keyboard of the computer 90 or as a optional writing surface. To
replace the keyboard insert 94, the user pushes on the insert back in the
distal direction, moving the insert molding 110 back down the drawer
track 108. The keyboard insert 94 is pushed distally until it is fully
pushed down the drawer track 108 and is resting on the bottom of the
drawer 86 as seen in FIG. 20. At this point the drawer 86 may be closed,
thus keeping the keyboard and keyboard insert 94 safely and conveniently
out of the workspace of the user. The drawer 86 also comprises a lock 100
that is capable of keeping the drawer 86 securely locked when in the
closed position.

[0076] Defined within the cashier station 14 beneath the drawer 86 is an
interior cabinet. The interior cabinet extends from beneath the drawer 86
down to the cabinet floor 98 of the cashier station 14. Disposed on the
interior walls of the cabinet are a plurality of shelf rails 92. The
shelf rails 92 are configured to provide matching left and right surfaces
for a removable shelf 84 to be slideably coupled thereto. For example, if
the shelf 84 is on the lowest pair of shelf rails 92 the user may adjust
the position of the shelf 84 by sliding the shelf 84 in the proximal
direction until the shelf is completely clear of the cabinet of the
cashier station 14. The user then selects a new height for the shelf 84
that is different from the original height and slides the shelf 84 back
in the distal direction until the shelf 84 is completely confined within
the cabinet as seen in FIG. 17. While the relevant figures show three
shelf 84 positions, each with a corresponding pair of shelf rails 92, it
is to be expressly understood that fewer or more shelf 84 positions may
be present within the cabinet without departing from the original spirit
and scope of the invention. It is in this fashion that a variety of uses
may be had for the cabinet including as storage space or as a platform
for housing any number of work related electronics including a printer,
fax machine, or a processing unit for the computer 90.

[0077] An access port 104 is defined within the flat surface 88 as seen in
FIGS. 17 and 18. The access port 104 allows the user to run various wires
or cables from the cabinet beneath the surface 88 up and through the flat
surface 88 and into any number of peripherals including computer 90. When
not needed or not in use, the access port 104 may be covered with a plug
(not shown). The plug is a solid single component comprised of the same
light weight rotationally molded plastic as the cashier station 14 and is
sized and shaped to snuggly fit within the access port 104. To remove the
plug, the user reaches beneath the flat surface 88 and pushes upward on
the plug until it effectively pops out of the access port 102. When
installed, the plug allows the user maintain a consistent flat work area
across the entirety of the surface 88 without sacrificing direct
accessibility to the cabinet below.

[0078] Many alterations and modifications may be made by those having
ordinary skill in the art without departing from the spirit and scope of
the invention. Therefore, it must be understood that the illustrated
embodiment has been set forth only for the purposes of example and that
it should not be taken as limiting the invention as defined by the
following invention and its various embodiments.

[0079] Therefore, it must be understood that the illustrated embodiment
has been set forth only for the purposes of example and that it should
not be taken as limiting the invention as defined by the following
claims. For example, notwithstanding the fact that the elements of a
claim are set forth below in a certain combination, it must be expressly
understood that the invention includes other combinations of fewer, more
or different elements, which are disclosed in above even when not
initially claimed in such combinations. A teaching that two elements are
combined in a claimed combination is further to be understood as also
allowing for a claimed combination in which the two elements are not
combined with each other, but may be used alone or combined in other
combinations. The excision of any disclosed element of the invention is
explicitly contemplated as within the scope of the invention.

[0080] The words used in this specification to describe the invention and
its various embodiments are to be understood not only in the sense of
their commonly defined meanings, but to include by special definition in
this specification structure, material or acts beyond the scope of the
commonly defined meanings. Thus if an element can be understood in the
context of this specification as including more than one meaning, then
its use in a claim must be understood as being generic to all possible
meanings supported by the specification and by the word itself.

[0081] The definitions of the words or elements of the following claims
are, therefore, defined in this specification to include not only the
combination of elements which are literally set forth, but all equivalent
structure, material or acts for performing substantially the same
function in substantially the same way to obtain substantially the same
result. In this sense it is therefore contemplated that an equivalent
substitution of two or more elements may be made for any one of the
elements in the claims below or that a single element may be substituted
for two or more elements in a claim. Although elements may be described
above as acting in certain combinations and even initially claimed as
such, it is to be expressly understood that one or more elements from a
claimed combination can in some cases be excised from the combination and
that the claimed combination may be directed to a subcombination or
variation of a subcombination.

[0082] Insubstantial changes from the claimed subject matter as viewed by
a person with ordinary skill in the art, now known or later devised, are
expressly contemplated as being equivalently within the scope of the
claims. Therefore, obvious substitutions now or later known to one with
ordinary skill in the art are defined to be within the scope of the
defined elements.

[0083] The claims are thus to be understood to include what is
specifically illustrated and described above, what is conceptionally
equivalent, what can be obviously substituted and also what essentially
incorporates the essential idea of the invention.